Core Legal Answer & Context: Local bodies, comprising Panchayats (rural) and Municipalities (urban), were constitutionally recognized and empowered through the 73rd and 74th Constitutional Amendment Acts of 1992. These amendments aimed to decentralize power and enable local self-governance, particularly in the areas of economic development and social justice. The Eleventh Schedule (for Panchayats) and Twelfth Schedule (for Municipalities) list 29 and 18 functional items, respectively, which are to be devolved to these bodies. These items include agriculture, rural housing, education, health, poverty alleviation, urban planning, and public health, all directly related to economic development and social justice. However, the extent to which local bodies enjoy true autonomy in performing these roles is a complex issue. While the constitutional framework provides for their existence, powers, and functions, their actual autonomy is often constrained by state governments. Financial dependence on state grants, limited powers to levy and collect taxes, and administrative control by state bureaucracies often hinder their ability to independently plan and execute development programs. The spirit of the amendments was to create 'institutions of self-government,' but in practice, many local bodies function more as implementing agencies for state-level schemes rather than autonomous decision-making bodies.

Relevant Statutes and Sections:

Important Landmark Cases: While there isn't a single landmark case directly defining the 'autonomy' of local bodies in the context of economic development and social justice, the constitutional amendments themselves are the landmark. Courts have generally upheld the spirit of decentralization. For instance, cases related to the State Election Commissions or State Finance Commissions have reinforced the independent functioning of these bodies, which are crucial for the autonomy of local self-governments.

Clear Conclusion: Constitutionally, local bodies are envisioned to have significant autonomy in fostering economic development and social justice. The 73rd and 74th Amendments provide a robust framework for their empowerment. However, the practical realization of this autonomy remains a challenge due to various factors, primarily financial dependence and administrative oversight by state governments. While the legal provisions exist to grant them substantial powers, the actual devolution of funds, functions, and functionaries (the '3 Fs') varies significantly across states, often limiting their capacity to act as truly autonomous institutions of self-government.